Scared think I’m pregnant with baby 2

Sapphire

Took a pregnancy test today and a very faint line and as much as I would love the baby I’m so very scared I have a 11 month old baby and he is pretty attached to me and I do find it a struggle sometimes. Iv only just come off my antidepressants and I’m so nervous if I am pregnant how I will cope with a nearly 2 year old and a newborn .. anyone else had the same worries or some advice x